Base bracket



FIG. 1 is a perspective of the base bracket showing my new design;

FIG. 2 is a front view of the base bracket;

FIG. 3 is a back view of the base bracket;

FIG. 4 is a left side view of the base bracket;

FIG. 5 is a right side view of the base bracket;

FIG. 6 is a top view of the base bracket; and,

FIG. 7 is a bottom view of the base bracket. 

CLAIM I claim the ornamental design for a base bracket, as shown and described. 